Solar studs are in accordance with GB/T29195 “General Specification for Crystalline Silicon Solar Cells for Ground Use”, GB/T19813-2005 “Solar Protruding Standards”, JT/T817-2011 “General Technical Requirements and Testing Methods for Sound Design of Highway Electromechanical Systems”, GB/T -24725-2009 “Protruding Road Signs” and other standards designed and produced, and